/*!	 ducktransform_scale.h
**	 Template Header
**
**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifndef __SYNFIG_STUDIO_DUCK_TRANSFORM_SCALE_H
#define __SYNFIG_STUDIO_DUCK_TRANSFORM_SCALE_H

#include "duckmatic.h"

namespace studio
{

class Transform_Scale : public synfig::Transform
{
private:
    synfig::Vector scale;
    synfig::Vector origin;
public:
    Transform_Scale(const synfig::GUID& guid, const synfig::Vector& scale, const synfig::Vector& origin = synfig::Vector(0, 0)):
        Transform(guid), scale(scale), origin(origin) { }
    synfig::Vector perform(const synfig::Vector& x)const
    {
        return synfig::Vector((x[0] - origin[0]) * scale[0] + origin[0], (x[1] - origin[1]) * scale[1] + origin[1]);
    }
    synfig::Vector unperform(const synfig::Vector& x)const
    {
        return synfig::Vector((x[0] - origin[0]) / scale[0] + origin[0], (x[1] - origin[1]) / scale[1] + origin[1]);
    }

    synfig::String get_string()const
    {
        return "duck scale";
    }
};

};

#endif